bhuang
7th May 2010, 17:25
I use the GLWidget class from the hellogl sample.
In initializeGL(), I want to access the current QGLContext and call makeCurrent(), doneCurrent() to make it available to other rendering threads and make it unavailable to current thread.
To do this, I call QGLContext::currentContext(). But the return type is a const* pointer, hence I can't call QGLContext::doneCurrent().
If I instead create my own context via
QGLContext* p = new QGLContext( QGLFormat::defaultFormat() );
bool result = p->create();
result is always 0. Same with other ways to construct QGLFormat.
Thanks
In initializeGL(), I want to access the current QGLContext and call makeCurrent(), doneCurrent() to make it available to other rendering threads and make it unavailable to current thread.
To do this, I call QGLContext::currentContext(). But the return type is a const* pointer, hence I can't call QGLContext::doneCurrent().
If I instead create my own context via
QGLContext* p = new QGLContext( QGLFormat::defaultFormat() );
bool result = p->create();
result is always 0. Same with other ways to construct QGLFormat.
Thanks